Leak-alarm



(No Model.)

G. H. BRIGGS.

LEAK ALARM.

Patented Deml 1893.

UNITED STATES PATENT OFFICE."

CHARLES H. BRIGGS, OF JERSEY CITY, NEW JERSEY.

LEAK-ALARM.

SPECIFICATION forming part of Letters Patent No. 511,041, dated December 19, 1893.

Application filed June 3,1893. Serial No. 476.428. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES H. BRIGGS, a o'tizen of the United States, residing at Jersey City, in the county of Hudson and State of.

5 New Jersey, have invented a new and useful Leak-Alarm for Vessels, of which the following is a specification.

My invention relates to improvements in alarms for use in connection with vessels, to indicate the existence of a leak or give notice when the water in the hold reaches a certain predetermined height.

The object of theinvention is to provide'a simple, inexpensive and effective device of the class named, in which the alarm, proper, can be arranged in the cabin, or in any other convenient position, remote from the hold, in order that there may be no failure in hearing the same.

Further objects and advantages of my invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claim.

In the drawings:- Figure l is a perspective showing an alarm mechanism, embodying my invention, arranged in the operative position. Fig. 2 is an enlarged view of the alarm proper.

Similar numerals of reference indicate corresponding parts in both the figures of the drawings.

1 designates the alarm, proper, which may be arranged in the cabin or pilot house of the boat or vessel, and'consists, essentially, of an actuating spring, 2, an escapement wheel, 3, an escapement lever, 4, an alarm bell, 5, and a knooker, 6, carried by the escapement 1ever. Oc-operating with these parts is a triplever, 7, of bell-crank shape, one arm of which is in operative relation to the escapement levcr, whereby when the other arm is depressed the escapement lever is locked against vibration, and when said arm is released or elevated the escapement lever is free to be actuated by the spring, 2. A spring, 8, is employed to elevate the free'arm of the bellcrank trip lever to release the escapement, and connected to said arm is a wire or red, 9,

which extends through a guide opening, 10,

inthe lower side of the casing,11,of the mech- 5o anism.

12, represents a weighted float, preferably of cork, which is designed to be arranged in the hold of the boat or vessel, and it is provided with a guide opening, 13, to receive a is sufficient to hold the trip lever in engage-- ment with the escapement lever and prevent the operation of the alarm, but when said float is elevated by the presence of water in the hold, or when said water rises sufficiently to elevate the float and relieve the trip lever of its weight, the alarm is sounded.

It will be understood that the flexible connection between the floatand the trip lever enables the alarm mechanism, proper, to be arranged at any desired distance from the point of danger, by carrying said connection around suitable guiding pulleys, did, such arrangement being so common in analogous relations as to need no illustration or detailed description, and therefore the alarm is sounded in a part of the vessel where it will reach the ear of the officer of the watch. The guide stem or pin holds the float in position and prevents displacement by the lurching of the vessel, and at the same time does not interfere with its easy rise and fall when effected by the water.

It will be understood that wit-h a device ar- In a leak alarm for vessels, the combinaj tion with analarm mechanism and a trip 1e- In testimony that I claim the foregoing es ver operatively connected thereto, of a, fixed my own I have hereto effixed my signature 111 10 vertical guiding stem or pin, a float, provided the presence of two witnesses.

with a guide openin fittin said stem or pin 1 w I S 5 end a flexible 0011116311011, 55 a cord, extend LR GG 1mg from the float to the trip lever and sup- \Vitnesses:

porting the weight of'the float, substantially LOUIS O. BRIGGS,

as specified. ERNEST I. SCOTT. 

